According to police reports, officers responded to the call of shots fired at the restaurant around 6:30 p.m. Police say officers immediately located Tilghman, who was dead when they arrived on-scene.

Investigators say it appears Tilghman opened fire from outside the doorway of the restaurant, hitting three people inside. A fourth person fell and broke their arm amid the chaos of the shooting.

Police say two civilians, identified as 35-year-old Juan Carlos Nazario and 39-year-old Bryan Wittle then shot the suspect, killing him. According to OKCPD Capt. Bo Matthews, the two men were not carrying their handguns, but retrieved them from the trunks of their vehicles before confronting Tilghman.

The four injured are said to be in good condition Friday morning. Police say all involved parties were interviewed and released from police custody.

Police say the motive behind the shooting remains unclear, but at this time it does not appear Tilghman knew anyone or targeted anyone in particular. Tilghman reportedly arrived at the restaurant already wearing eye and ear protection.